Finding the Third Proportional to 338,680.50 and 746,475

Step by Step Solution

1. Step 1: Write the proportion equation
   338,680.50 : 746,475 = 746,475 : x
2. Step 2: Convert to fraction form
   338,680.50/746,475 = 746,475/x
3. Step 3: Cross multiply
   338,680.50x = 746,475 × 746,475
4. Step 4: Simplify right side
   338,680.50x = 557,224,925,625
5. Step 5: Solve for x
   x = 557,224,925,625/338,680.50
6. Step 6: Final answer
   x = 1,645,281.99